Hydraulic grouting pump

Abstract

The utility model relates to the technical field of mining equipment, in particular to a hydraulic grouting pump. A driving motor and a corresponding hydraulic pump set are arranged on the mounting base, the hydraulic pump set is connected with a hydraulic mechanism, grouting assemblies matched with the hydraulic mechanism are arranged at the two ends of the mounting base, and the hydraulic mechanism is matched with a corresponding automatic reversing mechanism. When the hydraulic grouting pump is used, the driving motor rotates, high-pressure oil output by the hydraulic pump set is driven to pass through the hydraulic mechanism, the grouting assembly is controlled to conduct grouting, and due to the fact that the hydraulic oil tank of the hydraulic mechanism and the working cylinder move synchronously, and the cylinder diameter strokes are the same, the displacement and the pressure of the working cylinder are basically similar to those of the hydraulic oil tank. The two ends of the working cylinder are each provided with one grouting assembly, and the grouting assemblies can suck and discharge the same kind of grout and can also suck and discharge two different kinds of grout. In addition, an automatic reversing mechanism is arranged, so that the grouting assemblies at the two ends of the working cylinder can work continuously, and efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mining equipment, in particular to a hydraulic grouting pump. Background Art

[0002] Hydraulic grouting pumps are fully hydraulic, pressure-adjustable grouting equipment primarily used in civil engineering, mining, and tunneling. They are also suitable for tunnel excavation and maintenance, dam construction, large bridge construction, foundation treatment for high-rise buildings, and various underground projects. Existing hydraulic grouting pumps are complex and heavy, and require separate control for reversing, making them quite inconvenient.

[0003] Therefore, it is necessary to design a new hydraulic grouting pump. Utility Model Content

[0004] In view of the defects in the prior art, the utility model provides a hydraulic grouting pump.

[0005] The technical solution adopted by the utility model is: a hydraulic grouting pump, including a mounting base, on which a driving motor and a corresponding hydraulic pump group are arranged, the hydraulic pump group is connected to a hydraulic mechanism, and grouting components that cooperate with the hydraulic mechanism are arranged at both ends of the mounting base, and the hydraulic mechanism is cooperated with a corresponding automatic reversing mechanism.

[0006] In order to better realize the present invention, the hydraulic pump group is connected to a pilot overflow valve through a first pipeline, the pilot overflow valve is connected to a hydraulic oil tank through a second pipeline, and is connected to a working cylinder through a third pipeline. The two ends of the working cylinder are respectively connected to grouting components, and the automatic reversing mechanism cooperates with the working cylinder.

[0007] In order to better realize the present utility model, a bladder-type energy storage device is provided on the first pipeline.

[0008] In order to better realize the present utility model, a pressure gauge and an air filter are provided on the hydraulic oil tank.

[0009] In order to better realize the present utility model, the grouting assembly includes a piston cylinder body, and an upper pipe mouth and a lower pipe mouth are provided at both ends of the piston cylinder body. A first grouting pipe is connected between the two upper pipe mouths, and the first grouting pipe is matched with a first grouting mouth; a second grouting pipe is connected between the two lower pipe mouths, and the second grouting pipe is matched with a second grouting mouth.

[0010] In order to better realize the present invention, the first grouting port is equipped with a first steel ball valve, and the second grouting port is equipped with a second steel ball valve; a piston is equipped in the piston cylinder body, and the piston is connected to a piston rod; the piston rods at both ends extend into the working cylinder.

[0011] In order to better realize the present utility model, the automatic reversing mechanism includes a reversing valve connected to the working cylinder, the third pipeline is connected to the reversing valve, the hydraulic oil tank is connected to the fourth pipeline through a quick connector, and the fourth pipeline is connected to the reversing valve; a reversing switch is provided on the reversing valve, and the reversing switch is connected to the piston rod through a reversing assembly.

[0012] In order to better realize the present invention, the reversing assembly includes an articulated seat installed on the side of the reversing valve, on which a connecting rod is hinged, one end of the connecting rod is connected to the piston rod, and the other end is connected to a push rod, and the end of the push rod is provided with a push block that cooperates with the reversing switch.

[0013] The beneficial effects of the present invention are as follows: the hydraulic grouting pump of the present invention is equipped with a base, a drive motor, a hydraulic pump group, a hydraulic mechanism, a grouting component, and an automatic reversing mechanism. When in use, the drive motor rotates to drive the high-pressure oil output by the hydraulic pump group through the hydraulic mechanism to control the grouting component to perform grouting. Since the hydraulic oil tank of the hydraulic mechanism moves synchronously with the working cylinder and has the same cylinder diameter and stroke, the displacement and pressure of the working cylinder are basically similar to those of the hydraulic oil tank. There is a set of grouting components at each end of the working cylinder, which can absorb and discharge the same slurry or two different slurries respectively. In addition, an automatic reversing mechanism is provided, so that the grouting components at both ends of the working cylinder can work continuously, thereby improving efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly describes the drawings required for the specific embodiments or the description of the prior art. Similar elements or parts are generally identified by similar reference numerals throughout the drawings. Elements or parts in the drawings are not necessarily drawn to scale.

[0015] Figure 1 This is a structural diagram of a hydraulic grouting pump of the utility model;

[0016] Figure 2 This is another structural schematic diagram of the hydraulic grouting pump of the utility model;

[0017] Figure 3 This is a structural schematic diagram of a reversing assembly of a hydraulic grouting pump of the present utility model;

[0018] Figure 4 for Figure 3 A structural schematic diagram of the AA section view;

[0019] Figure 5 This is a schematic top view of the structure of the reversing assembly of the hydraulic grouting pump of the utility model;

[0020] Figure 6 This is a structural schematic diagram of a grouting assembly of a hydraulic grouting pump of the present utility model;

[0021] Figure 7 for Figure 6 A structural diagram of the middle BB cutaway;

[0022] In the accompanying drawings, 1 is a mounting base, 2 is a driving motor, 3 is a bladder accumulator, 4 is a hydraulic oil tank, 5 is a pilot-operated overflow valve, 6 is a first pipeline, 7 is a second pipeline, 8 is a quick connector, 9 is an air filter, 10 is a pressure gauge, 11 is a reversing valve, 12 is a piston cylinder, 13 is a first grouting port, 14 is a second grouting port, 15 is a piston rod, 16 is a connecting rod, 17 is a hinged seat, 18 is a push rod, 19 is a push block, 20 is a reversing switch, 21 is a third pipeline, 22 is a piston, 23 is a first steel ball valve, and 24 is a second steel ball valve. DETAILED DESCRIPTION

[0023] The following embodiments of the technical solution of the present invention are described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention and are therefore only examples and are not intended to limit the scope of protection of the present invention.

[0024] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by those skilled in the art in the field of this utility model.

[0025] Example:

[0026] like Figures 1 to 7 As shown, the hydraulic grouting pump of the present invention includes a mounting base 1, on which a drive motor 2 and a corresponding hydraulic pump group are provided. The hydraulic pump group is connected to a hydraulic mechanism. Grouting components that cooperate with the hydraulic mechanism are provided at both ends of the mounting base 1, and the hydraulic mechanism is coordinated with a corresponding automatic reversing mechanism. The hydraulic grouting pump of the present invention, through the coordination of the mounting base 1, the drive motor 2, the hydraulic pump group, the hydraulic mechanism, the grouting components, and the automatic reversing mechanism, when in use, the drive motor 2 rotates, driving the high-pressure oil output by the hydraulic pump group through the hydraulic mechanism, controlling the grouting components to perform grouting. Because the hydraulic oil tank 4 of the hydraulic mechanism moves synchronously with the working cylinder and has the same cylinder diameter and stroke, the displacement and pressure of the working cylinder are basically similar to those of the hydraulic oil tank 4. A set of grouting components is provided at each end of the working cylinder, which can suck and discharge the same slurry or two different slurries separately. In addition, an automatic reversing mechanism is provided, allowing the grouting components at both ends of the working cylinder to operate continuously, thereby improving efficiency.

[0027] As a preferred embodiment, the hydraulic pump group is connected to a pilot relief valve 5 through a first pipe 6, and the pilot relief valve 5 is connected to a hydraulic oil tank 4 through a second pipe 7, and is connected to a working cylinder through a third pipe 21. The two ends of the working cylinder are respectively connected to grouting assemblies, and the automatic reversing mechanism cooperates with the working cylinder. The pilot relief valve 5 controls the pressure of the hydraulic system through the cooperation of the pilot valve and the main valve. When the system hydraulic oil enters the oil inlet of the pilot relief valve, it will enter the oil inlet of the pilot valve through the throttling hole, and the hydraulic oil will also enter the upper cavity of the main valve core. When the pressure of the system hydraulic oil is lower than the set pressure of the pilot valve, the pilot valve core is pressed against the inlet of the pilot valve by the spring, and is in a closed state. At this time, the main valve core is pressed against the oil inlet of the main valve under the action of the main valve spring, and the hydraulic oil cannot flow from the oil inlet to the oil outlet. When the pressure of the system hydraulic oil is greater than the set pressure of the pilot valve, the pilot valve core opens, and the hydraulic oil flows from the pilot valve inlet to the oil tank, causing the hydraulic oil at the main valve inlet to replenish the lost hydraulic oil through the throttling hole, generating a pressure difference and causing the main valve core to move, thereby achieving the effect of overflow and pressure stabilization.

[0028] As a preferred embodiment, a bladder accumulator 3 is installed on the first pipe 6. As the hydraulic oil increases, the bladder accumulator is squeezed and deformed, reducing the gas volume and increasing the pressure. This is the energy storage process. When the gas expands, the hydraulic oil is continuously discharged, which is the energy release process. The use of the bladder accumulator 3 ensures stable operation of the hydraulic system.

[0029] As a preferred embodiment, a pressure gauge 10 and an air filter 9 are provided on the hydraulic oil tank 4. The pressure gauge 10 can always display the pressure in the hydraulic oil tank 4, and the air filter 9 can play a good air filtering role to ensure the normal operation of the equipment.

[0030] As a preferred embodiment, the grouting assembly includes a piston-cylinder body 12, each of which is provided with an upper pipe port and a lower pipe port. A first grouting pipe is connected between the two upper pipe ports, and the first grouting pipe is equipped with a first grouting port 13; a second grouting pipe is connected between the two lower pipe ports, and the second grouting pipe is equipped with a second grouting port 14. The first grouting port 13 is equipped with a first steel ball valve 23, and the second grouting port 14 is equipped with a second steel ball valve 24. A piston 22 is equipped in the piston-cylinder body 12, and the piston 22 is connected to a piston rod 15; the piston rods 15 at both ends extend into the working cylinder. The automatic reversing mechanism includes a reversing valve 11 connected to the working cylinder, a third pipe 21 connected to the reversing valve 11, and a fourth pipe connected to the hydraulic oil tank 4 via a quick connector 8. A reversing switch 20 is provided on the reversing valve 11, and the reversing switch 20 is connected to the piston rod 15 via a reversing assembly. In a preferred embodiment, the reversing assembly includes an articulated seat 17 mounted on the side of the reversing valve 11. A connecting rod 16 is hingedly connected to the articulated seat 17. One end of the connecting rod 16 is connected to the piston rod 15, and the other end is connected to a push rod 18. The distal end of the push rod 18 is provided with a push block 19 that engages with the reversing switch 20. With this design, when the piston rod 15 actuates, it drives the connecting rod 16, thereby driving the push rod 18 to reciprocate. This, in turn, causes the push block 19 to toggle the reversing switch 20 left and right, resulting in automatic reversing. The upper grouting port 13 discharges slurry, and the lower grouting port 14 receives slurry. When the piston rod 15 moves forward ( Figure 7 When the piston rod 15 assembly moves (leftward in the center), it pushes the steel ball of the first steel ball valve 23 upward, causing the slurry to flow out of the upper grouting port 13. Simultaneously, the steel ball of the second steel ball valve 24 presses downward, creating a seal. Conversely, when the piston rod 15 assembly moves backward, the steel ball of the first steel ball valve 23 presses downward to seal, while the steel ball of the second steel ball valve 24 moves upward, allowing the slurry to enter through the lower grouting port 14. This achieves automatic slurry inflow and outflow.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and description of the present invention.

Claims

1. Hydraulic grouting pump, characterized by: The invention comprises a mounting base (1), on which a driving motor (2) and a corresponding hydraulic pump group are arranged, the hydraulic pump group is connected to a hydraulic mechanism, grouting components cooperating with the hydraulic mechanism are arranged at both ends of the mounting base (1), and the hydraulic mechanism is cooperating with a corresponding automatic reversing mechanism.

2. The hydraulic grouting pump according to claim 1, characterized in that: The hydraulic pump group is connected to a pilot overflow valve (5) via a first pipeline (6), the pilot overflow valve (5) is connected to a hydraulic oil tank (4) via a second pipeline (7), and is connected to a working cylinder via a third pipeline (21), both ends of the working cylinder are respectively connected to grouting components, and the automatic reversing mechanism cooperates with the working cylinder.

3. The hydraulic grouting pump according to claim 2, characterized in that: A bladder-type energy storage device (3) is provided on the first pipeline (6).

4. The hydraulic grouting pump according to claim 3, characterized in that: A pressure gauge (10) and an air filter (9) are provided on the hydraulic oil tank (4).

5. The hydraulic grouting pump according to claim 4, characterized in that: The grouting assembly comprises a piston cylinder (12), both ends of which are provided with an upper pipe opening and a lower pipe opening, a first grouting pipe being connected between the two upper pipe openings, and the first grouting pipe being matched with a first grouting opening (13); a second grouting pipe being connected between the two lower pipe openings, and the second grouting pipe being matched with a second grouting opening (14).

6. The hydraulic grouting pump according to claim 5, characterized in that: The first grouting port (13) is equipped with a first steel ball valve (23), and the second grouting port (14) is equipped with a second steel ball valve (24); a piston (22) is equipped in the piston cylinder body (12), and the piston (22) is connected to a piston rod (15); the piston rods (15) at both ends extend into the working cylinder.

7. The hydraulic grouting pump according to claim 6, characterized in that: The automatic reversing mechanism comprises a reversing valve (11) connected to a working cylinder, the third pipe (21) is connected to the reversing valve (11), the hydraulic oil tank (4) is connected to a fourth pipe via a quick connector (8), and the fourth pipe is connected to the reversing valve (11); a reversing switch (20) is provided on the reversing valve (11), and the reversing switch (20) is connected to a piston rod (15) via a reversing assembly.

8. The hydraulic grouting pump according to claim 7, characterized in that: The reversing assembly includes an articulated seat (17) installed on the side of the reversing valve (11), a connecting rod (16) is hinged on the articulated seat (17), one end of the connecting rod (16) is connected to the piston rod (15), and the other end is connected to the push rod (18), and the end of the push rod (18) is provided with a push block (19) that cooperates with the reversing switch (20).

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